Patents by Inventor Hiromasa Yokoyama

Hiromasa Yokoyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7318737
    Abstract: A connector having a substantially box-like housing having an insertion opening into which an FPC is inserted, a two-forked contact placed inside the housing, and a lever provided so as to face the insertion opening of the housing and pivotably held by the housing. The two-forked contact has a base section held by the housing, an upper arm and a lower arm that extend from the base section toward the insertion opening, and two-forked engagement arms extending from the base section in the opposite direction to the insertion opening. The lever has a grip section, a rotating shaft provided on the grip section and held by the housing, and a first plate cam provided on the rotating shaft and engaging the engaging arm. When the grip section is opened, the first plate cam widens the interval between the two-forked engagement arms, widening the interval between the upper arm and the lower arm of the two-forked contact.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: January 15, 2008
    Assignee: J.S.T. Mfg. Co., Ltd.
    Inventor: Hiromasa Yokoyama
  • Patent number: 7261588
    Abstract: The present invention provides a connector including: an approximately box-shaped housing having an insertion opening for the insertion of an FPC; forked contact members provided within the housing; and a lever which is provided so as to face the insertion opening of the housing, and which is turnably held by the housing. With such an arrangement, the forked contact member includes a base, an upper arm and a lower arm, and a forked engaging arm. The tip of the lower arm is held by the housing. The lever includes a holding portion, a rotational shaft, and first plate cams. Upon raising the lever, the distance between the tips of each of the forked engaging arms is increased by the actions of the first plate cam, thereby increasing the distance between the upper arm and the lower arm of each of the forked contact members.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: August 28, 2007
    Assignee: J.S.T. Mfg. Co., Ltd.
    Inventor: Hiromasa Yokoyama
  • Publication number: 20070117451
    Abstract: A connector includes: an approximately box-shaped housing having an insertion opening for the insertion of an FPC; forked contact members provided within the housing; and a lever which is provided so as to face the insertion opening of the housing, and which is turnably held by the housing. Upon raising the lever through a handle portion, a distance between tips of the forked engaging arm is increased through a first plate cam, thereby increasing a distance between an upper arm and a lower arm of the forked contact member.
    Type: Application
    Filed: September 22, 2004
    Publication date: May 24, 2007
    Inventor: Hiromasa Yokoyama
  • Publication number: 20060270270
    Abstract: The present invention provides a connector including: an approximately box-shaped housing having an insertion opening for the insertion of an FPC; forked contact members provided within the housing; and a lever which is provided so as to face the insertion opening of the housing, and which is turnably held by the housing. With such an arrangement, the forked contact member includes a base, an upper arm and a lower arm, and a forked engaging arm. The tip of the lower arm is held by the housing. The lever includes a holding portion, a rotational shaft, and first plate cams. Upon raising the lever, the distance between the tips of each of the forked engaging arms is increased by the actions of the first plate cam, thereby increasing the distance between the upper arm and the lower arm of each of the forked contact members.
    Type: Application
    Filed: September 22, 2004
    Publication date: November 30, 2006
    Inventor: Hiromasa Yokoyama
  • Patent number: 6939176
    Abstract: An electrical connector includes a connector housing 2 for receiving and retaining a memory card, and connecting terminals 4a to 4f fixed to the connector housing 2. Some of the connecting terminals 4a, 4c, 4e are each connected with a circuit board at least 2 portions thereof (such as, 41a and 42a), the circuit board on which the electrical connector is mounted. This ensures a stable connection between the electrical connector and the circuit board and hence, the electrical connector will not encounter easy lift-off from the circuit board in spite of plural times of insertion/removal of the memory card (FIG. 1).
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: September 6, 2005
    Assignee: J.S.T. Mfg. Co., Ltd.
    Inventor: Hiromasa Yokoyama
  • Publication number: 20040209519
    Abstract: An electrical connector includes a connector housing 2 for receiving and retaining a memory card, and connecting terminals 4a to 4f fixed to the connector housing 2. Some of the connecting terminals 4a, 4c, 4e are each connected with a circuit board at least 2 portions thereof (such as, 41a and 42a), the circuit board on which the electrical connector is mounted. This ensures a stable connection between the electrical connector and the circuit board and hence, the electrical connector will not encounter easy lift-off from the circuit board in spite of plural times of insertion/removal of the memory card (FIG. 1).
    Type: Application
    Filed: February 11, 2004
    Publication date: October 21, 2004
    Inventor: Hiromasa Yokoyama
  • Patent number: 6315602
    Abstract: A retainer for an electrical connector presses an end of a flat cable into contact with a plurality of contacts in an insertion space, the flat cable inserted in the insertion space of a housing of the electrical connector. The retainer includes a main body formed of a synthetic resin, a pair of connection arms made of metal and fixed to the main body. The connection arms are connected to the housing as allowed to slide in a predetermined direction.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: November 13, 2001
    Assignee: J.S.T. Mfg. Co., LTD
    Inventors: Kazuto Miura, Hiroshi Yamane, Hiromasa Yokoyama
  • Patent number: D453319
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: February 5, 2002
    Assignee: J.S.T. Mfg. Co., LTD
    Inventor: Hiromasa Yokoyama
  • Patent number: D470109
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: February 11, 2003
    Assignee: J. S. T. Mfg. Co., Ltd.
    Inventors: Hiromasa Yokoyama, Youichi Nakazawa
  • Patent number: D485840
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: January 27, 2004
    Assignee: J. S. T. Mfg. Co., Ltd.
    Inventor: Hiromasa Yokoyama